參數(shù)資料
型號： M37471M8-XXXFP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機
文件頁數(shù)： 16/46頁
文件大?。?/td> 646K
代理商： M37471M8-XXXFP
16
7470/7471 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Fig. 7 Structure of timer mode registers
Timer 1 count stop bit
0 : Count start
1 : Count stop
Timer 1 count source selection bit
0 : Internal clock (Note 1)
1 : P3
2
/CNTR
0
external clock
Timer 1 internal clock source
selection bit (Note 2)
0 : f(X
IN
) divided by 16 or
f(X
CIN
) divided by 16
1 : f(X
CIN
)
P1
2
/T
0
port output selection bit
0 : P1
2
port output
1 : Timer 1 overflow divided by 2
Timer 2 count stop bit
0 : Count start
1 : Count stop
Timer 2 count source selection bit
0 : Internal clock
1 : Timer 1 overflow
Timer 2 internal clock source
selection bits (Note 3)
00 : f(X
IN
) divided by 16 or
f(X
CIN
) divided by 16
01 : f(X
IN
) divided by 64 or
f(X
CIN
) divided by 64
10 : f(X
IN
) divided by 128 or
f(X
CIN
) divided by 128
11 : f(X
IN
) divided by 256 or
f(X
CIN
) divided by 256
b7
b0
Timer 1 overflow FF set enable bit
0 : Set disable
1 : Set enable
Timer 4 overflow FF set enable bit
0 : Set disable
1 : Set enable
Nothing is allocated
(The value is undefined at reading)
Timer 3, timer 4 count overflow signal
selection bit
0 : Timer 1 overflow
1 : Timer 2 overflow
Timer 3, timer 4 function selection bit
0 : Normal mode
1 : PWM mode
b7
b0
Timer 3 count stop bit
0 : Count start
1 : Count stop
Timer 3 count source selection bits (Note 3)
00 : f(X
IN
) divided by 16 or
f(X
CIN
) divided by 16
01 : f(X
CIN
)
10 : Timer 1 overflow or timer 2 overflow
11 : P3
3
/CNTR
1
external clock
Timer 4 count stop bit
0 : Count start
1 : Count stop
Timer 4 count source selection bits (Note 3)
00 : Timer 3 overflow
01 : f(X
IN
) divided by 16 or
f(X
CIN
) divided by 16
10 : Timer 1 overflow or timer 2 overflow
11 : P3
3
/CNTR
1
external clock
Timer 4 pulse width measuring mode
selection bit
0 : Timer mode
1 : Pulse width measuring mode
P1
3
/T
1
port output selection bit
0 : P1
3
port output
1 : Timer 4 overflow divided by 2
or PWM output
b7
b0
1 :
f(X
IN
) divided by 16 in the 7470 group.
2 :
The 7470 group does not use this bit (bit 2). Set this bit to “0”.
3 :
Do not select f(X
CIN
) as the count source in the 7470 group.
Timer mode register 2 (TM2)
(Address 00FA
16
)
Timer 12 mode register (T12M)
(Address 00F8
16
)
Timer 34 mode register (T34M)
(Address 00F9
16
)
Notes
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